In this world there is no shortcut to take. So people, no matter how clever they are, can’t succeed_______ they work hard.
#57343
A
if
B
even though
C
unless
D
but
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--- What is our head teacher like, do you know? --Oh, he is very kind, ________ he looks very serious.
#55617
A
because
B
though
C
if
D
when
we’ll go to the Great Wall___ there is heavy rain tomorrow. OK! Walking on the Great Wall must be great fun.
#55445
A
as soon as
B
when
C
unless
D
if